It is expected to last two to three days, Prosecutor Risa Scully said.

Isabella County Principal Trial Attorney Mark Kowalczyk, who is trying the case, is expected to call Karl Suni, a technician at the Michigan State Police crime lab in Lansing, as an expert witness, according to court records.

Bonkowski dropped out of CMU last semester after being arrested in December for allegedly spraying bleach in her roommate’s iced tea Nov. 11 over a spat about dirty dishes.

She is charged with poisoning, a 15-year felony.

Bonkowski was originally released on bond after her December arrest but broke her bond conditions in January and was ordered by Judge Mark Duthie to return to the Isabella County Jail after being physically near the alleged victim at the Wayside bar Jan. 8.

She has since been released on bond again, with defense attorney Todd Levitt arguing that she wants to continue her studies at Macomb Community College and to assist him in preparing for her trial, according to court records.

Bonkowski, of Sterling Heights, admitted to police that she put bleach in her roommate’s drink because her roommate is “mean,” according to court records.

Bonkowski’s roommate was taken to McLaren-Central Michigan for treatment after the incident, police said.

(Susan Field can be reached at 989-779-6075, sfield@michigannewspapers.com or follow her on Facebook at facebook.com/#!/susan.k.field.)